Sound insulating board
US7998442B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31906
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a sound-insulating board, in particular a footfall insulating board for laminate floors or similar applications. The sound-insulating board is distinguished by a continuous transition of its density from the one large-area side to the other large-area side of the board and comprises a mixture of unglued wood fibers, a binder and/or supporting fibers and a mixed plastic, such as arises from the dual system during the recovery of plastic parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.